Consider the Following Half-Reactions:
Cl₂(g)+ 2 E^- $\to$ 2 Cl^-(aq) $~~~~~~~~$ $~~~~~~~~$

question 16

Multiple Choice

Consider the following half-reactions:
Cl₂(g) + 2 e^- $\to$ 2 Cl^-(aq) $~~~~~~~~$$~~~~~~~~$ E ^$\circ$ = +1.36 V
Ag⁺(aq) + e^- $\to$ Ag(s) $~~~ ~~~~$$~~~~ ~~~$$~~ ~~~~$ E ^$\circ$ = +0.80 V
Cu²⁺(aq) + 2 e^- $\to$ Cu(s) $~~~~~~~~$$~~~~~~~~$ E ^$\circ$ = +0.34 V
Sn²⁺(aq) + 2 e^- $\to$ Sn(s) $~~~~~ ~$$~~~ ~$$~~~~~~~~$ E ^$\circ$ = -0.14 V
Al³⁺(aq) + 3 e^- $\to$ Al(s) $~~~~~~~~$$~~~ ~~~~$$~~~$ E ^$\circ$ = -1.66 V
Which of the above elements or ions will reduce Cu²⁺(aq) ?

• A) Ag(s)and Sn²⁺(aq)
• B) Cl^-(aq)and Ag(s)
• C) Cl₂(g)and Ag⁺(aq)
• D) Sn(s)and Al(s)
• E) Sn²⁺(aq)and Al³⁺(aq)

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